Patents by Inventor Pritpal Singh

Pritpal Singh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Packaged dental floss with manual pressure dispensing
    Patent number: 5913418
    Abstract: A packaged dental floss is provided that includes a predetermined length of dental floss, suitable for a single use to floss a user's teeth, sealed within a cavity having walls of predetermined height, by a sealing film that is constructed to be ruptured by the user to dispense the floss from the cavity.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: June 22, 1999
    Inventor: Pritpal Singh
  • Stannous fluoride gel with improved stand-up
    Patent number: 5871715
    Abstract: The present invention relates to a stannous fluoride-containing gel comprising from about 0.3% to about 1.0% (by weight) stannous fluoride, from about 1.0% to about 10% (by weight) silica thickening agent and anhydrous glycerin. Preferably, these gels also contain from about 0.01% to about 5% (by weight) of a gum system, e.g. hydroxyethyl cellulose. These gels exhibit very good ribbon stand-up qualities and excellent fluoride ion and stannous ion stability. Also, the present invention relates to an improved method for producing the above gels. This method uses mixing equipment commonly employed to manufacture dentifrices and provides a simplified processing scheme.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: February 16, 1999
    Assignee: Gillette Canada Inc.
    Inventor: Pritpal Singh